obj-m :=hello.o 
KERNELDIR := /lib/modules/3.13.0-85-generic/build 
PWD := $(shell pwd) 
#BUILD_OUT=$(PWD)/build_out
modules: 
	$(MAKE) -C $(KERNELDIR) M=$(PWD) modules 
modules_install: 
	$(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install
clean:
	rm -rf *.o *~ core *.order *.symvers .depend .*.cmd *.ko *.mod.c .tmp_versions $(TARGET) *.out
